Express 1500 RWD V8-5.3L (2008)
Caution: Refer to Battery Disconnect Caution.
1. Disconnect the battery negative cable.
Caution: Refer to Restraint System Service Precautions.
2. Disable the SIR system. Refer to SIR Disabling and Enabling.
3. Remove the steering column trim covers.
4. Turn the ignition lock cylinder to the start position.
5. Insert the tip of an awl into the access hole (1) of the ignition lock cylinder.
6. Push down and hold the retaining pin of the ignition lock cylinder.
7. Release the ignition lock cylinder to the run position.
8. Remove the ignition lock cylinder by pulling the cylinder away from the steering column.
Installation Procedure
1. Install the ignition lock cylinder by performing the following procedure:
1. Align the positioning locking tab slot on the lock module to the positioning tab on the ignition lock cylinder.
2. Push the lock cylinder in until the tab locks in the lock module.
2. Install the steering column trim covers.
3. Enable the SIR system. Refer to SIR Disabling and Enabling.
4. Connect the battery negative cable.
5. Perform the Passlock learn procedure. Refer to Immobilizer System Component Programming. See: Testing and Inspection/Programming and
